This circuit was obtained from an Electronics Design of 1964. The circuit makes use of tunnel diodes that are uncommon today. The circuit works with very weak signals.
This circuit decodes a two-bit value into four outputs (one of four). The circuit must be powered by...
This experimental circuit is from a 1975s publication. The coil consists of 80 turns of wire AWG...
This conventional double time constant circuit was found in an American documentation from the...